Select Image - Image Rotation from menu options.
Chose how much to rotate the picture either from the choices or click Arbitary and chose the amount of rotation and teh direction - clockwise or anticlockwise..
If you don't like it, click Edit - Undo Rotate Canvas
Rotate Image
Select Image - Image Rotation from menu options.Chose how much to rotate the picture either from the choices or click Arbitary and chose the amount of rotation and teh direction - clockwise or anticlockwise..
If you don't like it, click Edit - Undo Rotate Canvas